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Compatible Fittings?

 
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Old 04-13-2019, 10:50 AM   #1
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Compatible Fittings?


Hey all, Im doing some pool Plumbing for a personal project that I'm building, I'm having a hard time finding 2in PVC Schedule 40 long sweep 90s and I don't want to use standard 90s for obvious flow obstruction reasons. The pump im running is 3hp capable of pumping 180 GPM, My lines will all be buried and concreted over so i need to make sure its done right the first time!

I know i have the option of using 2 - 45s to make the corner , but i was told by a employee at the lumber yard that these fittings pictured below would work i just dont trust anyone and hoping for input from more people with in field experience. It does state above or underground as well as sch40 on the sweep. im no plumber, whats the difference in white to grey... will they adhere together proper, what issues would arise from using this? to my knowledge this is an electrical conduit fitting

THANK YOU
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Old 04-13-2019, 11:44 AM   #2
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Re: Compatible Fittings?


That looks like conduit fittings for electrical. Regardless I would get pressure 90s which actually have a sharper turn but are made for pumps and pressure lines

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Old 04-13-2019, 11:59 AM   #3
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Re: Compatible Fittings?


Grey pipe for plumbing is usually a dark grey and will be schedule 80 or it could come in other colors too.

I would not use the light grey pipe he recommended as it is, I think it is electrical conduit and as such may not be compatible with potable waters. And it may not use the same priming and gluing products as white PVC pipe.
Now even though it states that it is "schedule 40" it may not necessarily be rated for a certain pressure but rather for the thickness of the pipe. Others may disagree with this though.

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Old 04-13-2019, 01:03 PM   #4
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Re: Compatible Fittings?


Hope you will pressure test your system, right ?

Curios, is the pump centrifugal or positive displacement ?
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Old 04-13-2019, 03:47 PM   #5
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Re: Compatible Fittings?


couple good heat guns can make your own , 2" not that big just take your time doing it.
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Old 04-13-2019, 04:26 PM   #6
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Re: Compatible Fittings?


Zoom in and it says Schedule 40 rigid and non metallic conduit, you should go to a plumbing supply house and go from there or work with a good plumber on it.

Here's a short video that explains a bit about pvc, cpvc, schedule 40 and schedule 80................


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Old 04-13-2019, 04:40 PM   #7
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Re: Compatible Fittings?


They make them in both sweep and long sweep.
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Old 04-13-2019, 07:17 PM   #8
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Re: Compatible Fittings?


https://www.menards.com/main/plumbin...4449206110.htm
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Old 04-13-2019, 09:25 PM   #9
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Re: Compatible Fittings?


Sounds like ill be best off just using 2 - 45s, im sure the long sweep i mentioned would work but long term who knows and im not a gambler 🙂

Ill definitely test the system before i bury the pipe and as far as the pump being centrifugal or positive displacement ? lol no idea!! its a Pentair 011018 model variable speed.
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Old 04-13-2019, 09:26 PM   #10
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Re: Compatible Fittings?


Unfortunately this is drain line, so not pressure rated

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Old 04-13-2019, 09:32 PM   #11
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Re: Compatible Fittings?


The fittings you posted are electrical fittings, do not use them in this application.

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Old 04-14-2019, 01:14 AM   #12
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Re: Compatible Fittings?


Why pour concrete over plumbing that is GOING to FAIL?

use pavers etc....
High end pools have tunnels around them for easy service...

3 HP = 30 cents + an hour, 4 hrs a day ~500.00$ a year for juice, and all those water treatment chems, and You are cheaping out on Potable water pipes.

Go Schedule 80 Pressure fittings they have longer glue joints and will take more pressure jolts then DVW and Conduit crap.

Don't forget to install thrust blocking as required.

Use Anti-Hammer fittings to prevent joint and pipe breakage.
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Old 04-14-2019, 08:20 AM   #13
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Re: Compatible Fittings?


https://www.pvcfittingsonline.com/2-...SABEgIhOPD_BwE
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Old 04-14-2019, 09:16 AM   #14
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Re: Compatible Fittings?


Quote:
Originally Posted by arudam View Post
Unfortunately this is drain line, so not pressure rated
https://www.menards.com/main/plumbin...5564673&ipos=2
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Old 04-14-2019, 09:21 AM   #15
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Re: Compatible Fittings?


http://lascofittings.com/poolspa
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Old 04-14-2019, 10:15 AM   #16
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Re: Compatible Fittings?


I did't see any long throw 90s in that link.
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Old 04-14-2019, 10:18 AM   #17
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Re: Compatible Fittings?


Quote:
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I did't see any long throw 90s in that link.
http://lascofittings.com/category/poolspa-sweepelbow
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Old 04-14-2019, 10:21 AM   #18
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Re: Compatible Fittings?


Well there ya go.
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Old 04-14-2019, 10:26 AM   #19
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Re: Compatible Fittings?


Yup thats it thanks! Have to see if they will sell me direct, otherwise being in canada... dang almost $50 each delivered and i need 14, id still be using 2-45s at that price
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Old 04-14-2019, 12:03 PM   #20
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Re: Compatible Fittings?


Quote:
Originally Posted by arudam View Post
Yup thats it thanks! Have to see if they will sell me direct, otherwise being in canada... dang almost $50 each delivered and i need 14, id still be using 2-45s at that price

https://www.ebay.com/itm/Waterway-Po....c100005.m1851

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